What you say is very telling: I seem to have so many childcare issues,
............. affects my ability to work.
............................ DH does what he can
It seems as though you've assumed this is your issue to resolve?
On your own!
but DH will lose money and reputation if he misses work - he is a decorator.
I get paid a salary which is not affected if I miss work.
So, it's a no-brainer - you pick up most of the childcare work because you're not affected work-wise / salary-wise??
And then you say that you feel you're' pushing it' with your employer - and have told them 'that I don’t think my performance / productivity is up to scratch because I’m taking so much time out for DC
...................... to be honest, why should you expect your employer to accept a situation that you yourself have said is below-par.
They are being reasonable in making allowances for your situation.
Why should they continue to do so -- you, yourself say that they're not getting the value of what they're paying for
The fact is ............ YOU don't think your work is 'up to scratch',
Ask yourself:
Why is your DH's 'money and reputation' more important than your money and reputation?
You know that your 'money' is safe - but you instinctively feel that your 'reputation' is not quite as safe.
Your DH may not want to let people down.
But, equally, you don't want to let people down.
If you feel that you're letting your employer down, what makes you feel this way?
I suspect it's because you're being honest. - you are also thinking about the impact on other members of your team / the impact on your work environment / the impact on your personal reputation
From experience of:
a) being self-employed - and having to re-arrange appointments
b) working for self-employed members of my family - and having to re-arrange appontments
c) employing self-employed trades (decorators / plasterers / plumbers / electricians etc) - and having to have appointments re-arranged
I find that people are very understanding when appointments have to be cancelled and then re-arranged.
It's easy enough to re-arrange things .......... and it certainly doesn't impact on your reputation if you're honest about why you have to rearrange.
People will wait a day or two (or more!) for a decorator / plumber / plasterer / electrician.
And if your DH tells you any different, he's having you on.
If you're worried that you may be 'pushing it with your employer' you've answered your own question with your doubts ....................
It seems that you're doing more than your fair share of childcare.
As PPs have said, look at your options
- and get your 'D' H to look at his options too! because he needs a quick kick up the backside